Spring phenology in boreal Eurasia over a nearly century time-scale
It has been widely reported that tree leaves have tended to appear earlier in many regions of the northern hemisphere in the last few decades, reflecting climate warming. Satellite observations revealed an 8-day advance in leaf appearance date between 1982 and 1991 in northern latitudes. In situ obs...
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Online Access: | https://eprints.whiterose.ac.uk/10557/ https://doi.org/10.1111/j.1365-2486.2007.01505.x |
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ftleedsuniv:oai:eprints.whiterose.ac.uk:10557 2024-06-02T08:15:09+00:00 Spring phenology in boreal Eurasia over a nearly century time-scale Delbart, N. Picard, G. Le Toan, T. Kergoat, L. Quegan, S. Woodward, I. Dye, D. Fedotova, V. 2008 https://eprints.whiterose.ac.uk/10557/ https://doi.org/10.1111/j.1365-2486.2007.01505.x unknown Wiley-Blackwell Delbart, N., Picard, G., Le Toan, T. et al. (5 more authors) (2008) Spring phenology in boreal Eurasia over a nearly century time-scale. Global Change Biology, 14 (3). pp. 603-614. ISSN 1354-1013 Article NonPeerReviewed 2008 ftleedsuniv https://doi.org/10.1111/j.1365-2486.2007.01505.x 2024-05-06T12:36:32Z It has been widely reported that tree leaves have tended to appear earlier in many regions of the northern hemisphere in the last few decades, reflecting climate warming. Satellite observations revealed an 8-day advance in leaf appearance date between 1982 and 1991 in northern latitudes. In situ observations show that leaf appearance dates in Europe have advanced by an average of 6.3 days from 1959 to 1996. Modelling of leaf appearance on the basis of temperature also shows a marked advance in temperate and boreal regions from 1955 to 2002. However, before 1955, reported studies of phenological variations are restricted to local scale. Modelling, ground observations and satellite observations are here combined to analyse phenological variations in Eurasian taiga over nearly a century. The trend observed by remote sensing consists mainly in a shift at the end of the 1980s, reflecting a shift in winter and spring temperature. In western boreal Eurasia, a trend to earlier leaf appearance is evident since the mid-1930s, although it is discontinuous. In contrast, the strong advance in leaf appearance detected over Central Siberia using satellite data in 1982–1991 is strengthened by late springs in 1983–1984; moreover, in this region the green-up timing has displayed successive trends with opposite signs since 1920. Thus, such strong trend is not unusual if considered locally. However, the recent advance is unique in simultaneously affecting most of the Eurasian taiga, the leaf appearance dates after 1990 being the earliest in nearly a century in most of the area. Article in Journal/Newspaper taiga Siberia White Rose Research Online (Universities of Leeds, Sheffield & York) Global Change Biology 14 3 603 614 |
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White Rose Research Online (Universities of Leeds, Sheffield & York) |
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ftleedsuniv |
language |
unknown |
description |
It has been widely reported that tree leaves have tended to appear earlier in many regions of the northern hemisphere in the last few decades, reflecting climate warming. Satellite observations revealed an 8-day advance in leaf appearance date between 1982 and 1991 in northern latitudes. In situ observations show that leaf appearance dates in Europe have advanced by an average of 6.3 days from 1959 to 1996. Modelling of leaf appearance on the basis of temperature also shows a marked advance in temperate and boreal regions from 1955 to 2002. However, before 1955, reported studies of phenological variations are restricted to local scale. Modelling, ground observations and satellite observations are here combined to analyse phenological variations in Eurasian taiga over nearly a century. The trend observed by remote sensing consists mainly in a shift at the end of the 1980s, reflecting a shift in winter and spring temperature. In western boreal Eurasia, a trend to earlier leaf appearance is evident since the mid-1930s, although it is discontinuous. In contrast, the strong advance in leaf appearance detected over Central Siberia using satellite data in 1982–1991 is strengthened by late springs in 1983–1984; moreover, in this region the green-up timing has displayed successive trends with opposite signs since 1920. Thus, such strong trend is not unusual if considered locally. However, the recent advance is unique in simultaneously affecting most of the Eurasian taiga, the leaf appearance dates after 1990 being the earliest in nearly a century in most of the area. |
format |
Article in Journal/Newspaper |
author |
Delbart, N. Picard, G. Le Toan, T. Kergoat, L. Quegan, S. Woodward, I. Dye, D. Fedotova, V. |
spellingShingle |
Delbart, N. Picard, G. Le Toan, T. Kergoat, L. Quegan, S. Woodward, I. Dye, D. Fedotova, V. Spring phenology in boreal Eurasia over a nearly century time-scale |
author_facet |
Delbart, N. Picard, G. Le Toan, T. Kergoat, L. Quegan, S. Woodward, I. Dye, D. Fedotova, V. |
author_sort |
Delbart, N. |
title |
Spring phenology in boreal Eurasia over a nearly century time-scale |
title_short |
Spring phenology in boreal Eurasia over a nearly century time-scale |
title_full |
Spring phenology in boreal Eurasia over a nearly century time-scale |
title_fullStr |
Spring phenology in boreal Eurasia over a nearly century time-scale |
title_full_unstemmed |
Spring phenology in boreal Eurasia over a nearly century time-scale |
title_sort |
spring phenology in boreal eurasia over a nearly century time-scale |
publisher |
Wiley-Blackwell |
publishDate |
2008 |
url |
https://eprints.whiterose.ac.uk/10557/ https://doi.org/10.1111/j.1365-2486.2007.01505.x |
genre |
taiga Siberia |
genre_facet |
taiga Siberia |
op_relation |
Delbart, N., Picard, G., Le Toan, T. et al. (5 more authors) (2008) Spring phenology in boreal Eurasia over a nearly century time-scale. Global Change Biology, 14 (3). pp. 603-614. ISSN 1354-1013 |
op_doi |
https://doi.org/10.1111/j.1365-2486.2007.01505.x |
container_title |
Global Change Biology |
container_volume |
14 |
container_issue |
3 |
container_start_page |
603 |
op_container_end_page |
614 |
_version_ |
1800739246777040896 |